Windows



v. B. K. RAsMussEN 3,465,478

Sept. 9, 1969 WINDOWS 2 Sheets-Sheet 1 Filed April 24, 1967 I NVENTOR ATTORNEY p 1969 v. B. K. RASMUSSEN 3,465,478

WINDOWS 2 Sheets-Sheet 2 Filed April 24, 1967 INVENTOR ATTORNEY United States Patent 3,465,478 WINDOWS Villium Benedikt Kann Rasmussen, 6 Solystparken, Klampenborg, Denmark Filed Apr. 24, 1967, Ser. No. 633,040 Int. Cl. Ed 15/48; E051 11/52 US. Cl. 49169 7 Claims ABSTRACT OF THE DISCLOSURE The invention relates to a Window comprising at least one sash, such as a tilting sash, and a ventilation flap mounted therein, said flap being so connected to the sash and its locking means that it may be used as a handle or grip to engage and disengage the locking means and to open and close the window.

The invention relates to a window comprising at least one sash having one or more locking means operable through an operating member, and further comprising at least one ventilating flap.

Such windows are known in which the ventilating flap is operated fully separately, i.e. independently of the means provided for locking the sash in its closed position. Consequently, there must be two mutually independent sets of operating members for the flap and the sash, respectively, which may give rise to errors in the manipulation and also will involve complication as well as enhancement of the cost of the whole structure. The same drawbacks are met with in another known design, in which the sash locking means and ventilating flap are connected to one and the same operating member in such a manner that this during one part of its travel causes the flap to open and close, and during another part of its travel acts upon the sash locking means.

The invention aims at providing such a simplification as will enable the said drawbacks to be overcome.

With a view to this purpose, the window according to the invention is characteristic in that the movable ventilating flap is supported by the sash, and itself carries, or is connected with, the sash locking means. In this case the ventilating flap proper may serve as a handle to activate the sash locking means, so that no separate handle is required for this purpose, and the ventilating flap may further be used to push the sash open after disengaging of the locking means, whereby it will be easier to operate the window than if, after disengaging of the locking means by use of the ventilating flap, another grip had to be made on the sash proper. According to the invention it is especially preferred in windows having a swingable sash that the ventilating flap is hinged to the sash on an axis parallel to the axis of the sash, as this affords the easiest operation. The background for this is that in this manner a certain continuity is obtained in the travel of the ventilating flap and the sash during opening as well as closing.

If the window is a tilting window, the hinge axis of the ventilating flap may appropriately be located at the longitudinal edge of the flap facing the pivot or tilting axis of the sash, whereby the smoothest fiow of operations is obtained.

The connection between the ventilating flap and the sash locking means may be provided in a great many diiferent ways, but in an adequate design the locking means connected to the ventilating flap are mounted in the sash or in the frame of the window. The motion of the ventilating flap in relation to the sash then is transformed into a motion for the sash locking means, and in practice this transformation of motion can easily be provided in such a manner that considerable forces are avail- "ice able, for instance to overcome high friction causing the locking means to be self-arresting in and near the locking position.

According to the invention, the locking means may be constituted by studs which are fitted in the sash and which can be displaced at a right angle to the axis of the sash for engagement of and disengagement from forkshaped strikes fitted in the frame. As will appear more in detail from the description below, thi is a simple and eificient solution in respect of design, as far as the activation of the locking means by use of the ventilating flap is concerned.

In a somewhat modified embodiment of the window the ventilating flap is provided with fixed, hook-shaped locking means for engaging and disengaging retainers fitted in the window frame. In this case the locking of the sash in relation to the frame thus is effected by a direct locking grip between the retainers of the frame and the closed ventilating flap. As will appear from the description below, this may give a certain possibility of simplification as regards the design.

For reasons of operation, the ventilating flap may be associated with means fixing the flap in its open position when the sash of the window is open. Thereby it is avoided that the locking means be pushed unintentionally towards their position of engagement while the sash is open, which might give rise to undue shocks during the last part of the closing travel of the sash.

SUMMARY OF THE CLAIMED INVENTION A window construction comprising a sash movable in a frame and fitted with a ventilating flap, as well as means for locking the sash in the frame in its closed position, is improved according to the invention by an operative connection between the locking means and the ventilating flap, so as to cause operation of the locking means, and opening and closing of the sash, by the opening and closing movement of the ventilating flap.

The invention will now be more fully described with reference to the accompanying drawings, in which FIG. 1 shows a rather diagrammatical vertical section through an inclined skylight of the tilting type incorporating in the upper part of the sash a ventilating slit with an inside ventilating flap, and

FIG. 2 a similar view of a tilting window with a ventilating slit between the main sash of the window and its frame and with an inside as well as an outside ventilating flap.

The tilting skylight shown in FIG. 1 comprises a frame 1 in which a sash 2 is suspended in the ordinary manner so as to be tiltable on a horizontal central axis 3. In the top part of the sash 2 a ventilating slit 4 is provided which is controlled by an inside ventilating flap 5, the lower edge of which is connected through a hinge 6 to a cross member 7 in the sash 2, so that the flap can be swung between the closed position shown in solid line and the ventilating position indicated in dotted line. 8 is a handle fitted on the ventilating flap.

A connecting rod or link 9 i at one end connected to the ventilating flap 5 and carries at its opposite end a locking stud 10 which can slide in a rectilinear channel 11 of a guide channel 12 fitted in the frame 2. In the closed position shown in solid line the locking stud 10 is at the top end of the channel 11 and further engages a fork-shaped strike 13 fitted in the frame 1. In this position the locking stud 10, as will clearly be seen, prevents the sash 2 from opening.

When the ventilating flap 5 is swung into the position shown in dotted line the locking stud 10 will be pulled downwards in the channel 11 and thereby pass out of mesh with the fork 13, so that the sash 2 now can be tilted freely on the axis 3.

It should be added for the sake of completeness that the stud 10 may be fitted in a locking bar which can be displaced vertically in the side member 2 of the sash, and which at any rate at one end is shaped as a latch engaging an associated strike in the frame 1. In such case the forkshaped strike 13 may possibly be dispensed with.

In FIG. 2 the same reference numerals are used for analogous parts as in FIG. 1. According to FIG. 2 the sash of the window is composed of a main sash 2 and a secondary sash 2', and the ventilating flap 5 is mounted in this case, through the hinge 6, on a bracing member 7 in the secondary sash 2'. The ventilating slit 4 is provided between the top edge of the main sash 2 and the top member of the frame 1. This ventilating fiap 4, which is covered in the inward direction by the ventilating flap 5, also has an outside closing fiap 14, which is attached by the hinge 15 to the main sash, and which opens and closes simultaneously with the inside ventilating flap 5. In the embodiment shown in the drawing this has been obtained by means of a link system with a double-armed lever 16, which at a point intermediate its ends is journalled on a stud 17 in a bracket 18 on the secondary sash 2', and the ends of which through the links 19 and 20 are connected with the inside ventilating flap 5 and the outside closing flap 14, respectively. The link system 16, 19, 20 may be so adapted that the three link members will have a substantially straight line relationship when the ventilating fiap 5 i swung maximally inwards round its hinge 6. In such case the ventilating flap will be fixed in this open position, as the link system must be broken before the two flaps can be closed again. With a view to this, a spring 21 is fitted in the frame 1 which at the end of the closing travel of the sash 2 forms a stop to the lower part of the double-armed lever 16. Thereby the lever is turned past its dead point position, so that the two flaps 5 and 14 now can be swung back to the closed position shown in the drawing.

The locking between the sash 2-2 and the frame 1 is effected in this case through direct engagement between a hook-shaped locking member 22 on the inner side of the ventilating flap 5 and a stud-shaped retainer 23 fitted in the window frame. In the locking position shown in the drawing the end of the locking member 22 engages a locking bar 24, which can be so displaced in the main sash 2 of the window, that its lower end like a latch can engage a corresponding strike in the frame 1. The locking bar 24 may be spring-loaded in the upward direction, so that the locking engagement in question is released when the ventilating flap 5 is swung into its open position round the hinge 6. Hereby also the hook-shaped locking means 22 is thrown out of mesh with the retaining stud 23, so that the sash 2-2' can be opened freely.

Finally, it should be mentioned for the sake of completeness that the ventilating flap of the window may further be used, during its travel in the opening direction, to initiate the opening travel of the sash. In the I embodiment shown in FIG. 2 this, for example, can be achieved by allowing the hook-shaped locking member 22 to form part of a fork, the other part or prong of which puts off from the retaining stud 23 when the ventilating fiap 5 is swung open round the hinge 6.

It should further be pointed out that the invention is not limited to tilting Windows, as the principle of utilizing a ventilating flap as an operating member for the sash may also be used advantageously for example in turnable windows or laterally hinged windows. Nor is it necessary that this ventilating flap should be hingedly connected to the sash, as it may also be openable by displacement, which should then appropriately be effected at a right angle to the plane of the window.

What I claim is:

1. A window comprising a stationary frame member, a sash member movable in the frame member between a closed and an open position, a ventilating flap movably supported by said sash member, manually operable locking means carried by one of said members and associated holding means in the other member, with which holding means said locking means is engageable and from which it is disengageable, respectively, said ventilating flap being operably connected with said locking means in such a manner as to cause unlocking and locking, respectively, of the sash member with respect to said frame member, as the ventilating flap is being moved towards, and from, its open position, respectively.

2. A window as defined in claim 1 in which, in addition, said manually operable locking means comprises a handle on said ventilating flap and in which said operable connection is such as to produce opening of said ventilating flap before unlocking of said sash member, and locking before completion of the closing of the vent flap, respectively.

3. A window as defined in claim 1 in which, in addition, the sash member is hingedly connected to the frame member, and in which the ventilating flap is hinged to said sash member on an axis which is parallel to the hinge axis between the sash and frame members.

4. A window as defined in claim 1 in which, in addition, the sash member in hingedly connected to the frame member on a sash axis, in which the ventilating flap is of rectangular outer configuration and is hinged to said sash member on a flap axis which is parallel to said sash axis, the flap axis being located along the one edge of the flap which is nearest to said sash axis, and in which an operating handle is provided on said ventilating flap adjacent the edge of the flap which is opposite said one edge.

5. A window as defined in claim 1 in which said locking and holding means comprises a stud movably carried by the sash member and an associated fork-shaped strike fitted in the frame member, said stud being connected to the ventilating flap by motion transmitting means operative positively to move said stud into and out of its forkengaging position upon movement of said flap towards, and away from, its closed position, respectively.

6. A window as defined in claim 1 in which said locking and holding means comprises a hook member fixedly mounted on said ventilating fiap and an associated retainer fitted in the frame member in such position as to be engaged by said hook member in the closed position of said flap.

7. A window as defined in claim 1 in which, in addition, means are provided for arresting the ventilating flap in its open position when said sash member is open.

References Cited UNITED STATES PATENTS 1,468,160 9/1923 Horn 49-171 1,488,162 3/1924- Miller 4917l X 1,628,920 5/1927 Senftle et al 49169 X 1,953,845 4/1934 Barbieri et al 49169 X 2,748,855 6/1956 Siems et al 49169 X DENNIS L. TAYLOR, Primary Examiner US. Cl. X.R. 

